Improvement in extension-lamp fixtures



J. A. EVARTS.

EXTENSION LAMP FIXTURES.

N0,183,913, Patented Oct. 31.1876.

UNITED STATES PATENT QEFIGE.

JOHN A. EVARTS, OF WEST MERIDEN, CONN., ASSIGNOR TO THE BRADLEY ANDHUBBARD MANUFACTURING COMPANY, OF SAME PLACE.

IMPROVEMENT IN EXTENSION-LAMP FIXTURES.

Specication forming part of Letters Patent No. 183,9 I3, dated October31, 1876; application led May 6, 1876.

To all whom it may concern:

Be it known that I, JOHN A. EvARTs, of West Meriden, in the county ofNew Haven and State of Connecticut, have invented a new Improvement inExtension-Lamp Fixtures; and I do hereby declare the following, whentaken in connection with the accompanying drawings, and the letters ofreference marked thereon, to be a full, clear, and exact descriptionofthe same, and which said drawings constitute part ot' thisspecification, and represent a sectional side view.

This invention relates to an improvement in what are calledextension-lamp fixturesthat is to say, a fixture which, when suspend ed,will allow the lamp to be drawn down, or rest at different elevations.

In the usual construction the shade serves as the counter-balance, andraises while the lamp is'drawn down. Hence the shade can serve its fullpurpose only iu one predetermined position.

The object of this invention is so to construct the fixture that thelamp and shade togcther will be drawn down; and it consists in aweightedring, which forms substantially a crown for the shade when the two aretogether suspended by one end ot chains or cords over pulleys from thesupport above, combined with a shade-holder attached to the second endof the said chains or cords, and the lamp attached to the saidshade-holder, all as more fully hereinafter described.

A is the shade-ring, from which chains or cords a extend up over pulleysb, thence down, and the other end ot' the chains attached to aweight-ring, B, and so that by drawing down the shade-ring theweight-ring,` will rise, asindicated in broken lines; but when theshadering is at its highest elevation. then the weight-ring reststhereon, and forms a cap or crown to the shade-ring A, to which theshade C is secured by the set-screw d, or other device. To theshade-ring the lamp-holder E is attached, so as to move up and-down withthe shade and its ring, as indicated .in broken lines.`

The ring B is made of sufficient weight to counterbalance the shade, itsring, and lamp, and so that the lamp may rest at any position betweenits two extremes.

I claim- The combination of the weight-ring B, the shade-ring A, towhich the lamp and shade are attached, the said shade-ring andweightring adjustably connected by chains or cords from a support abovethe said weight-ring, constructed to rest upon or crown the shade, allsubstantially as described.

J. A. EVARTS.

Witnesses:

R. P. RAND, C. F. LrNsLEY.

